Helical Solutions 81764 Corner Radius End Mill 1/2 in 5 Flute

Product Description

The HELICAL SOLUTIONS 81764 is a 5-flute, solid carbide corner radius end mill designed for high-performance material removal in demanding machining environments. It carries a 1/2-inch mill diameter, a 2-1/2-inch length of cut, and a 0.0300-inch corner radius, making it suitable for both roughing and finishing operations in a single pass. The APLUS PVD coating reduces friction and extends tool life in ferrous and hard-material applications. Variable pitch flute geometry minimizes chatter and improves surface finish at elevated feed rates. Machinists and CNC programmers in production shops and job shops select this tool for high-efficiency milling where consistency and repeatability are critical.

This end mill is engineered for use in steel and cast iron as primary workpiece materials, with secondary suitability for stainless steel, non-ferrous metals, superalloys, and titanium. The HEV-5 series is built for demanding cutting conditions where tool rigidity and coating durability are required. Its centercutting design allows plunge entry, and the straight-cylindrical shank seats reliably in high-precision toolholders. It is appropriate for vertical and horizontal machining centers running modern CAM toolpaths that take advantage of variable-pitch geometry.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• APLUS PVD coating rated for steel, cast iron, stainless steel, superalloys, and titanium
• Variable pitch flute spacing reduces harmonic chatter during high-feed operations
• Centercutting design permits direct plunge entry without a pilot hole
• 0.0300-inch corner radius extends tool life and improves corner-load distribution
• Right-hand cut and right-hand flute direction compatible with standard spindle rotation
• Requires high-precision toolholders to maintain the 0.0005-inch maximum TIR specification

Compatibility

Designed for use with high-precision toolholders. Primary workpiece materials are steel and cast iron; secondary materials include stainless steel, non-ferrous metals, superalloys, and titanium. Part of the HELICAL SOLUTIONS HEV-5 series.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Seat the shank fully in a high-precision collet or toolholder to maintain runout within the 0.0005-inch TIR maximum. Verify toolholder cleanliness and taper condition before tightening. Confirm spindle direction is set to right-hand rotation before engaging the cut.